./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:07:10,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:10,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:10,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:10,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:10,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:10,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:10,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:10,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:10,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:10,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:10,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:10,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:10,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:10,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:10,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:10,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:10,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:10,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:10,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:10,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:11,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:11,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:11,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:11,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:11,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:11,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:11,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:11,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:11,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:11,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:11,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:11,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:11,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:11,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:11,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:11,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:11,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:11,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:11,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:11,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:11,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:07:11,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:11,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:11,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:11,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:11,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:11,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:11,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:11,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:11,107 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:11,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:11,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:11,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:11,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:11,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:11,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:11,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:07:11,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:11,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:07:11,111 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:07:11,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:11,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:07:11,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:11,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:07:11,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:11,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:11,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:11,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:11,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:11,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:11,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:07:11,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:11,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:11,118 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:07:11,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:07:11,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:07:11,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-16 11:07:11,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:11,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:11,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:11,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:11,514 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:11,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-16 11:07:11,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/data/6254cc9a9/60dc29642b144c16a052b7313ee31b61/FLAG3c44d7d6e [2022-11-16 11:07:12,440 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:12,446 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-16 11:07:12,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/data/6254cc9a9/60dc29642b144c16a052b7313ee31b61/FLAG3c44d7d6e [2022-11-16 11:07:12,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/data/6254cc9a9/60dc29642b144c16a052b7313ee31b61 [2022-11-16 11:07:12,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:12,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:12,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:12,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:12,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:12,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:12" (1/1) ... [2022-11-16 11:07:12,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749dd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:12, skipping insertion in model container [2022-11-16 11:07:12,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:12" (1/1) ... [2022-11-16 11:07:12,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:12,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:13,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:13,658 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:13,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:13,868 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:13,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13 WrapperNode [2022-11-16 11:07:13,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:13,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:13,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:13,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:13,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:13,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:13,971 INFO L138 Inliner]: procedures = 368, calls = 55, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 96 [2022-11-16 11:07:13,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:13,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:13,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:13,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:13,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:13,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:14,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:14,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:14,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:14,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (1/1) ... [2022-11-16 11:07:14,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:14,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:14,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:14,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:07:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:07:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:07:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:07:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:07:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:07:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:07:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:07:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:07:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:07:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:07:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:14,156 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:07:14,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:14,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:07:14,865 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:07:14,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:07:14,879 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:07:14,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:14 BoogieIcfgContainer [2022-11-16 11:07:14,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:07:14,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:07:14,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:07:14,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:07:14,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:12" (1/3) ... [2022-11-16 11:07:14,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36618e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:14, skipping insertion in model container [2022-11-16 11:07:14,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:13" (2/3) ... [2022-11-16 11:07:14,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36618e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:14, skipping insertion in model container [2022-11-16 11:07:14,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:14" (3/3) ... [2022-11-16 11:07:14,901 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-16 11:07:14,914 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:07:14,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:07:14,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:07:14,930 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:07:15,080 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:07:15,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 143 transitions, 291 flow [2022-11-16 11:07:15,306 INFO L130 PetriNetUnfolder]: 0/142 cut-off events. [2022-11-16 11:07:15,307 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:15,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 142 events. 0/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 11:07:15,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 143 transitions, 291 flow [2022-11-16 11:07:15,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 134 transitions, 271 flow [2022-11-16 11:07:15,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:07:15,366 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1cfb0dc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:07:15,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-16 11:07:15,416 INFO L130 PetriNetUnfolder]: 0/98 cut-off events. [2022-11-16 11:07:15,417 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:15,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:15,418 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:15,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:07:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -621853055, now seen corresponding path program 1 times [2022-11-16 11:07:15,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:15,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734616518] [2022-11-16 11:07:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:21,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:21,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734616518] [2022-11-16 11:07:21,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734616518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:21,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:21,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-16 11:07:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800900915] [2022-11-16 11:07:21,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:21,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-16 11:07:21,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:21,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-16 11:07:21,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:07:21,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 143 [2022-11-16 11:07:21,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 134 transitions, 271 flow. Second operand has 29 states, 29 states have (on average 55.48275862068966) internal successors, (1609), 29 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:21,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:21,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 143 [2022-11-16 11:07:21,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:26,074 INFO L130 PetriNetUnfolder]: 96/491 cut-off events. [2022-11-16 11:07:26,074 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:26,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 491 events. 96/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2100 event pairs, 5 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 618. Up to 40 conditions per place. [2022-11-16 11:07:26,082 INFO L137 encePairwiseOnDemand]: 106/143 looper letters, 100 selfloop transitions, 62 changer transitions 0/207 dead transitions. [2022-11-16 11:07:26,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 207 transitions, 741 flow [2022-11-16 11:07:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-16 11:07:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-16 11:07:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2657 transitions. [2022-11-16 11:07:26,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39532807617914 [2022-11-16 11:07:26,111 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2657 transitions. [2022-11-16 11:07:26,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2657 transitions. [2022-11-16 11:07:26,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:26,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2657 transitions. [2022-11-16 11:07:26,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.53191489361702) internal successors, (2657), 47 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:26,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 143.0) internal successors, (6864), 48 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:26,159 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 143.0) internal successors, (6864), 48 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:26,162 INFO L175 Difference]: Start difference. First operand has 138 places, 134 transitions, 271 flow. Second operand 47 states and 2657 transitions. [2022-11-16 11:07:26,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 207 transitions, 741 flow [2022-11-16 11:07:26,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 207 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:07:26,174 INFO L231 Difference]: Finished difference. Result has 182 places, 165 transitions, 468 flow [2022-11-16 11:07:26,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=468, PETRI_PLACES=182, PETRI_TRANSITIONS=165} [2022-11-16 11:07:26,181 INFO L288 CegarLoopForPetriNet]: 138 programPoint places, 44 predicate places. [2022-11-16 11:07:26,182 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 165 transitions, 468 flow [2022-11-16 11:07:26,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.48275862068966) internal successors, (1609), 29 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:26,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:26,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:26,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:07:26,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:07:26,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:26,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2097575192, now seen corresponding path program 1 times [2022-11-16 11:07:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:26,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117384382] [2022-11-16 11:07:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:26,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:30,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:30,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117384382] [2022-11-16 11:07:30,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117384382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:30,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:30,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-16 11:07:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396534730] [2022-11-16 11:07:30,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:30,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-16 11:07:30,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:30,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-16 11:07:30,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:07:30,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 143 [2022-11-16 11:07:30,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 165 transitions, 468 flow. Second operand has 29 states, 29 states have (on average 55.51724137931034) internal successors, (1610), 29 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:30,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:30,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 143 [2022-11-16 11:07:30,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:34,174 INFO L130 PetriNetUnfolder]: 88/460 cut-off events. [2022-11-16 11:07:34,175 INFO L131 PetriNetUnfolder]: For 45/51 co-relation queries the response was YES. [2022-11-16 11:07:34,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 460 events. 88/460 cut-off events. For 45/51 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1894 event pairs, 5 based on Foata normal form. 6/459 useless extension candidates. Maximal degree in co-relation 660. Up to 40 conditions per place. [2022-11-16 11:07:34,180 INFO L137 encePairwiseOnDemand]: 106/143 looper letters, 96 selfloop transitions, 62 changer transitions 0/203 dead transitions. [2022-11-16 11:07:34,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 203 transitions, 860 flow [2022-11-16 11:07:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-16 11:07:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-16 11:07:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2653 transitions. [2022-11-16 11:07:34,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3947329266478203 [2022-11-16 11:07:34,191 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2653 transitions. [2022-11-16 11:07:34,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2653 transitions. [2022-11-16 11:07:34,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:34,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2653 transitions. [2022-11-16 11:07:34,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.4468085106383) internal successors, (2653), 47 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 143.0) internal successors, (6864), 48 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,221 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 143.0) internal successors, (6864), 48 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,222 INFO L175 Difference]: Start difference. First operand has 182 places, 165 transitions, 468 flow. Second operand 47 states and 2653 transitions. [2022-11-16 11:07:34,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 203 transitions, 860 flow [2022-11-16 11:07:34,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 203 transitions, 792 flow, removed 0 selfloop flow, removed 27 redundant places. [2022-11-16 11:07:34,230 INFO L231 Difference]: Finished difference. Result has 200 places, 164 transitions, 522 flow [2022-11-16 11:07:34,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=522, PETRI_PLACES=200, PETRI_TRANSITIONS=164} [2022-11-16 11:07:34,232 INFO L288 CegarLoopForPetriNet]: 138 programPoint places, 62 predicate places. [2022-11-16 11:07:34,232 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 164 transitions, 522 flow [2022-11-16 11:07:34,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.51724137931034) internal successors, (1610), 29 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:34,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:34,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:07:34,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:07:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1494943688, now seen corresponding path program 1 times [2022-11-16 11:07:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:34,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315022092] [2022-11-16 11:07:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:34,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:37,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:37,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315022092] [2022-11-16 11:07:37,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315022092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:37,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:37,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 11:07:37,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108999025] [2022-11-16 11:07:37,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:37,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 11:07:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:37,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 11:07:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:07:37,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 143 [2022-11-16 11:07:37,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 164 transitions, 522 flow. Second operand has 28 states, 28 states have (on average 54.714285714285715) internal successors, (1532), 28 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:37,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 143 [2022-11-16 11:07:37,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:41,533 INFO L130 PetriNetUnfolder]: 81/408 cut-off events. [2022-11-16 11:07:41,533 INFO L131 PetriNetUnfolder]: For 108/112 co-relation queries the response was YES. [2022-11-16 11:07:41,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 408 events. 81/408 cut-off events. For 108/112 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1541 event pairs, 0 based on Foata normal form. 4/412 useless extension candidates. Maximal degree in co-relation 630. Up to 39 conditions per place. [2022-11-16 11:07:41,537 INFO L137 encePairwiseOnDemand]: 107/143 looper letters, 99 selfloop transitions, 61 changer transitions 0/211 dead transitions. [2022-11-16 11:07:41,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 211 transitions, 968 flow [2022-11-16 11:07:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 11:07:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-16 11:07:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2490 transitions. [2022-11-16 11:07:41,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38694638694638694 [2022-11-16 11:07:41,551 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2490 transitions. [2022-11-16 11:07:41,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2490 transitions. [2022-11-16 11:07:41,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:41,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2490 transitions. [2022-11-16 11:07:41,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 55.333333333333336) internal successors, (2490), 45 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 143.0) internal successors, (6578), 46 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,578 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 143.0) internal successors, (6578), 46 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,578 INFO L175 Difference]: Start difference. First operand has 200 places, 164 transitions, 522 flow. Second operand 45 states and 2490 transitions. [2022-11-16 11:07:41,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 211 transitions, 968 flow [2022-11-16 11:07:41,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 211 transitions, 836 flow, removed 0 selfloop flow, removed 46 redundant places. [2022-11-16 11:07:41,586 INFO L231 Difference]: Finished difference. Result has 197 places, 171 transitions, 542 flow [2022-11-16 11:07:41,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=542, PETRI_PLACES=197, PETRI_TRANSITIONS=171} [2022-11-16 11:07:41,588 INFO L288 CegarLoopForPetriNet]: 138 programPoint places, 59 predicate places. [2022-11-16 11:07:41,588 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 171 transitions, 542 flow [2022-11-16 11:07:41,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 54.714285714285715) internal successors, (1532), 28 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:41,589 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:41,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:07:41,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:07:41,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:41,591 INFO L85 PathProgramCache]: Analyzing trace with hash -901385585, now seen corresponding path program 1 times [2022-11-16 11:07:41,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:41,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643992199] [2022-11-16 11:07:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:41,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:44,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:44,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643992199] [2022-11-16 11:07:44,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643992199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:44,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:44,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:07:44,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114182421] [2022-11-16 11:07:44,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:44,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:07:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:07:44,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:07:44,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 143 [2022-11-16 11:07:44,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 171 transitions, 542 flow. Second operand has 26 states, 26 states have (on average 54.96153846153846) internal successors, (1429), 26 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:44,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 143 [2022-11-16 11:07:44,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:47,698 INFO L130 PetriNetUnfolder]: 73/388 cut-off events. [2022-11-16 11:07:47,699 INFO L131 PetriNetUnfolder]: For 106/112 co-relation queries the response was YES. [2022-11-16 11:07:47,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 388 events. 73/388 cut-off events. For 106/112 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1420 event pairs, 1 based on Foata normal form. 15/403 useless extension candidates. Maximal degree in co-relation 593. Up to 30 conditions per place. [2022-11-16 11:07:47,701 INFO L137 encePairwiseOnDemand]: 111/143 looper letters, 0 selfloop transitions, 0 changer transitions 213/213 dead transitions. [2022-11-16 11:07:47,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 213 transitions, 974 flow [2022-11-16 11:07:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 11:07:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-16 11:07:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2280 transitions. [2022-11-16 11:07:47,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3888794132696572 [2022-11-16 11:07:47,710 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2280 transitions. [2022-11-16 11:07:47,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2280 transitions. [2022-11-16 11:07:47,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:47,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2280 transitions. [2022-11-16 11:07:47,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 55.609756097560975) internal successors, (2280), 41 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:47,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 143.0) internal successors, (6006), 42 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:47,733 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 143.0) internal successors, (6006), 42 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:47,734 INFO L175 Difference]: Start difference. First operand has 197 places, 171 transitions, 542 flow. Second operand 41 states and 2280 transitions. [2022-11-16 11:07:47,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 213 transitions, 974 flow [2022-11-16 11:07:47,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 213 transitions, 865 flow, removed 0 selfloop flow, removed 37 redundant places. [2022-11-16 11:07:47,740 INFO L231 Difference]: Finished difference. Result has 199 places, 0 transitions, 0 flow [2022-11-16 11:07:47,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=0, PETRI_PLACES=199, PETRI_TRANSITIONS=0} [2022-11-16 11:07:47,742 INFO L288 CegarLoopForPetriNet]: 138 programPoint places, 61 predicate places. [2022-11-16 11:07:47,742 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 0 transitions, 0 flow [2022-11-16 11:07:47,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 54.96153846153846) internal successors, (1429), 26 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:47,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-16 11:07:47,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-16 11:07:47,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-16 11:07:47,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-16 11:07:47,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-16 11:07:47,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-16 11:07:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-16 11:07:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-16 11:07:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-16 11:07:47,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:07:47,750 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:07:47,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:07:47,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:07:47,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:07:47 BasicIcfg [2022-11-16 11:07:47,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:07:47,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:07:47,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:07:47,766 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:07:47,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:14" (3/4) ... [2022-11-16 11:07:47,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:07:47,777 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:07:47,783 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 11:07:47,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 11:07:47,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:07:47,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:07:47,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:07:47,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:07:47,833 INFO L158 Benchmark]: Toolchain (without parser) took 35230.04ms. Allocated memory was 134.2MB in the beginning and 415.2MB in the end (delta: 281.0MB). Free memory was 87.1MB in the beginning and 307.5MB in the end (delta: -220.4MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,833 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:07:47,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1265.64ms. Allocated memory is still 134.2MB. Free memory was 87.0MB in the beginning and 79.1MB in the end (delta: 7.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.85ms. Allocated memory is still 134.2MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,835 INFO L158 Benchmark]: Boogie Preprocessor took 80.49ms. Allocated memory is still 134.2MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:07:47,835 INFO L158 Benchmark]: RCFGBuilder took 829.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 127.6MB in the end (delta: -53.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,836 INFO L158 Benchmark]: TraceAbstraction took 32875.36ms. Allocated memory was 161.5MB in the beginning and 415.2MB in the end (delta: 253.8MB). Free memory was 126.7MB in the beginning and 310.6MB in the end (delta: -183.9MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,836 INFO L158 Benchmark]: Witness Printer took 66.69ms. Allocated memory is still 415.2MB. Free memory was 310.6MB in the beginning and 307.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:07:47,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1265.64ms. Allocated memory is still 134.2MB. Free memory was 87.0MB in the beginning and 79.1MB in the end (delta: 7.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.85ms. Allocated memory is still 134.2MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.49ms. Allocated memory is still 134.2MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 829.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 127.6MB in the end (delta: -53.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 32875.36ms. Allocated memory was 161.5MB in the beginning and 415.2MB in the end (delta: 253.8MB). Free memory was 126.7MB in the beginning and 310.6MB in the end (delta: -183.9MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Witness Printer took 66.69ms. Allocated memory is still 415.2MB. Free memory was 310.6MB in the beginning and 307.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 177 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 32.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1350 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1350 mSDsluCounter, 2266 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2035 mSDsCounter, 249 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4727 IncrementalHoareTripleChecker+Invalid, 4976 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 249 mSolverCounterUnsat, 231 mSDtfsCounter, 4727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 273 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4302 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=3, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 9246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:07:47,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_887e8d0b-91ed-4b61-a01b-5cef6365ce3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE